Reference

#Supported DPTs

A telegram does not transmit its DPT. Each receiving object interprets the payload using its own DPT. Object state stores the decoded value: for DPT 5.001, an entered value of 50% encodes as byte 0x80 and decodes to about 50.196%. The diagram rounds it while the inspector shows more precision.

DPT	Name	Size	Range	Examples: value → encoded bytes → display
`1.001`	Switch	1 bit	0 … 1	0 → `0x00` → Off ; 1 → `0x01` → On
`1.002`	Boolean	1 bit	0 … 1	0 → `0x00` → False ; 1 → `0x01` → True
`1.003`	Enable	1 bit	0 … 1	0 → `0x00` → Disabled ; 1 → `0x01` → Enabled
`1.005`	Alarm	1 bit	0 … 1	0 → `0x00` → No alarm ; 1 → `0x01` → Alarm
`1.007`	Step	1 bit	0 … 1	0 → `0x00` → Step decrease ; 1 → `0x01` → Step increase
`1.008`	Up/Down	1 bit	0 … 1	0 → `0x00` → Up ; 1 → `0x01` → Down
`1.009`	Open/Closed	1 bit	0 … 1	0 → `0x00` → Open ; 1 → `0x01` → Closed
`1.010`	Start/Stop	1 bit	0 … 1	0 → `0x00` → Stop ; 1 → `0x01` → Start
`1.011`	State	1 bit	0 … 1	0 → `0x00` → Inactive ; 1 → `0x01` → Active
`1.012`	Invert	1 bit	0 … 1	0 → `0x00` → Not inverted ; 1 → `0x01` → Inverted
`1.017`	Trigger	1 bit	0 … 1	0 → `0x00` → Triggered ; 1 → `0x01` → Triggered
`1.018`	Occupation	1 bit	0 … 1	0 → `0x00` → Vacant ; 1 → `0x01` → Occupied
`1.019`	Window/Door	1 bit	0 … 1	0 → `0x00` → Closed ; 1 → `0x01` → Open
`1.100`	Heating/Cooling	1 bit	0 … 1	0 → `0x00` → Cooling ; 1 → `0x01` → Heating
`2.001`	Priority control	2 bits	0 … 3	0 → `0x00` → No forcing ; 2 → `0x02` → Forced off ; 3 → `0x03` → Forced on
`3.007`	Relative dimming	4 bits	0 … 15	0 → `0x00` → Stop dimming ; 15 → `0x0F` → Increase by 1.6 %
`5.001`	Percentage	1 byte	0 … 100	0 → `0x00` → 0 % ; 50 → `0x80` → 50 % ; 100 → `0xFF` → 100 %
`5.004`	Percentage (0–255)	1 byte	0 … 255	0 → `0x00` → 0 % ; 100 → `0x64` → 100 % ; 255 → `0xFF` → 255 %
`5.010`	Counter	1 byte	0 … 255	0 → `0x00` → 0 ; 255 → `0xFF` → 255
`7.600`	Colour temperature	2 bytes	0 … 65535	2700 → `0x0A8C` → 2700 K ; 6500 → `0x1964` → 6500 K
`9.001`	Temperature	2 bytes	-273 … 670433.28	21 → `0x0C1A` → 21.0 °C ; -5.5 → `0x85DA` → -5.5 °C ; 45.2 → `0x146A` → 45.2 °C
`9.002`	Temperature difference	2 bytes	-671088.64 … 670433.28	-2 → `0x8738` → -2.0 K ; 0.5 → `0x0032` → +0.5 K
`9.004`	Lux	2 bytes	0 … 670433.28	350 → `0x2C46` → 350 lx ; 42000 → `0x6401` → 41,984 lx
`9.005`	Wind speed	2 bytes	0 … 670433.28	3.5 → `0x015E` → 3.5 m/s ; 14.2 → `0x058C` → 14.2 m/s
`9.007`	Humidity	2 bytes	0 … 670433.28	45 → `0x1465` → 45.0 % ; 72.5 → `0x1715` → 72.52 %
`9.008`	Air quality	2 bytes	0 … 670433.28	650 → `0x2FEF` → 650 ppm ; 1400 → `0x3C46` → 1,400 ppm
`9.024`	Power (kW)	2 bytes	-671088.64 … 670433.28	0.06 → `0x0006` → 0.06 kW ; 3.5 → `0x015E` → 3.5 kW
`9.028`	Wind speed (km/h)	2 bytes	0 … 670433.28	12.6 → `0x04EC` → 12.6 km/h ; 51.1 → `0x14FE` → 51.12 km/h
`10.001`	Time of day	3 bytes	0 … 691199 (00:00:00 … Sun 23:59:59)	114900 → `0x273700` → Mon 07:55:00 ; 81000 → `0x161E00` → 22:30:00
`11.001`	Date	3 bytes	19900101 … 20891231 (1990-01-01 … 2089-12-31)	20260928 → `0x1C091A` → 2026-09-28 ; 19991231 → `0x1F0C63` → 1999-12-31
`13.010`	Active energy	4 bytes	-2147483648 … 2147483647	0 → `0x00000000` → 0 Wh ; 12500 → `0x000030D4` → 12,500 Wh
`13.013`	Active energy (kWh)	4 bytes	-2147483648 … 2147483647	0 → `0x00000000` → 0 kWh ; 4210 → `0x00001072` → 4,210 kWh
`14.056`	Power	4 bytes	-3.4e+38 … 3.4e+38	60 → `0x42700000` → 60 W ; 1250.5 → `0x449C5000` → 1,250.5 W
`17.001`	Scene number	1 byte	0 … 63	0 → `0x00` → Scene 1 ; 63 → `0x3F` → Scene 64
`20.102`	HVAC mode	1 byte	0 … 4	1 → `0x01` → Comfort ; 3 → `0x03` → Economy ; 4 → `0x04` → Protection

Values of 1, 2, or 4 bits occupy the low bits of the APCI byte. Longer values follow it as 1 to 4 additional payload bytes, as shown in the Size column; the frame length grows accordingly.

Other standard DPTs can be used on the objects of passive and display devices, which show them without simulating them: see passive devices.

In JSON, a time of day (10.001) is a number of seconds counted from 00:00 on the day given by the week day: 0 means no day, 86400 × n + seconds means day n (1 = Monday, 7 = Sunday). A date (11.001) is written as the number YYYYMMDD.